Winder



Feb. 9, 193-1. A. PETERSON 2,070 37 WINDER Filed Sept. 20, 1935 2Sheets-Sheet l INVENTO Burt A Peters on ATTO EYS v FeB. 9, 1937. B. A.PETERSON WINDER Filed Sept. 20, 19:55

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Il -l INVENTOR Burt 14. Pet e rson Patented Feb. 9, 1937 WINDER Burt A.Peterson, Rockford, Ill., assignor to Barber-Colman Company, Rockford,111., a corporation of Illinois Application September 20, 1935, SerialNo. 41,353

4 Claims. (01. 28-26) T QFFIQE F'I'his invention relates to winders, as,for example, ball and beam warpers, and more particularly to means forcausing the yarn to be wound under pressure and for counteracting ai' ytendency to make the yarn mass eccentric or tapering.

The specific embodiment herein shown of the invention is an improvementupon the mechanism disclosed in the Colman Patent No. 1366, 237, datedJanuary 25, 1921. In that mechanism a weight 427, through a system oflevers, pressed the yarn mass against the Winding drum. Since theleverage exerted by the weight was not variable, as much pressure wasapplied by the Weight to a full warp beam as to an empty beam;consequently the pressure exerted upon a full beam as compared with thepressure placed upon an empty beam, was greater by an amount equal tothe weight of the yarn mass. It is desirable that all portions of theyarn mass shall be wound under approximately constant pressure. Theobject of the present invention is to provide a construction that willkeep the pressure approximately constant during the winding of theentire yarn mass.

In the accompanying drawings:

Figure 1 is a fragmental right-hand end elevation of a beam warperembodying the present improvements.

Fig. 2 is a fragmental front elevation of the warper.

, Fig. 3 is a fragmental left-hand end elevation of the warper.

Fig. 4 is a detail view of a ratchet mechanism comprised in the presentembodiment of the invention.

The drawings show a warp beam B as operatively mounted in the warper,said beam comprising a barrel b, heads b, and trunnions N. The beam issupported and rotated by means of a friction drum l rotatably mounted inthe framework of the warper and driven by any preferred means. The beamB is supported with its yarn mass in peripheral contact with theperiphery of the drum l by means of two arms 2 and 3 which are pivotedin the warper framework upon the axis 4. The trunnions b may beconnected to the arms 2 and 3 in any desired manner.

The beam is pressed against the friction drum l by means including twoscrew rods 5 that extend through slots in said arms. Each rod 5 isthreaded through a nut 6 having on opposite sides studs 1 that lie inelongated openings 8 in the arms. Each screw rod 5 is rotatably mountedin a yoke or coupling member 9 and held against endwise movement withrelation to the yoke. The yokes 9 are pivotally mounted upon a shaft illextending from side to side of the warper. The shaft I is rotatablymounted in the forward arms of two levers ll, said levers being pivotedin the warper framework upon the axis l2. The rear arms of the levers Hare connected by means of links it to crank arms l4 fixed upon a rockshaft I journaled in the warper framework. A coiled contractile springI6 is connected at its lower end to the left-hand crank arm M and isanchored at its upper end to a rearward extension ll secured to the beamarm 3. It will be seen that the spring it exerts force to lift the reararms of the levers H and thus draw the beam arms 2 and 3 down to holdthe barrel of the beam B pressed against the friction drum I.

In order to allow the beam to rise as yarn is wound upon the barrel 1)the screw rods 5 are rotated in the direction to cause the nuts 6 totravel upwardly on the screw rods. For this purpose a bevel gear i8 isfixed to the lower end of each screw rod 5, said gears meshing withbevel gears i9 fixed upon the shaft Hi. It will be seen that rotation ofthe shaft It will cause the screw rods 5 to be simultaneously rotated.

The shaft I0 is rotated in the direction to produce upward movement ofthe nuts 6 by means comprising aroller ratchet of the silent type. Thisratchet may be of any common or desired construction. Herein, itconsists of a disk 20 fixed on the left-hand end of the shaft l0, and acoacting roller 2! carried by a member 22 which is virtually a bellcrank. In the opposite sides of the member 22 are slots 23 through whichthe trunnions 24 of the roller 2i ext-end. The member 22 is pivotallysupported upon the shaft it and is arranged to be oscillated by means ofa crank disk 25 and a pitman 26. The crank disk 25 is rotatably mountedin the warper framework and is driven from the shaft of the frictiondrum 1 through gears 21. Counterclockwise movement of the member 22, asviewed in Figs. 3 and 4, is idle and produces no movement of the disk23. Clockwise movement of the member 22 causes the roller 2! tofrictionally engage the disk 20 and thus cause the shaft Hi to turn,except when the roller 2! is displaced from the lower ends of the slots23 by means to be now described.

An arm 28 rigidly secured to the rock shaft l5 has a forked forward end29 which underlies the trunnions 2d of the roller 2L When the arm 28 isin the position shown in Fig. 4, its forked forward end does notinterfere with the roller 25, but when said arm rises so as to lift thetrunnions of the roller 2! in the slots 23 the roller is prevented fromclutching the disk 20, to the bell crank member 22 and consequentlyclockwise movement of the member 22 imparts no movement to the disk 20and the shaft i9.

Any desired means may be employed to damp the vibrations of the leversH, as for example, a dashpot 3B, the plunger of which is connected to acrank arm 3| which is rigid with the rock shaft l5.

Means is provided for manually rotating the screw rods to raise andlower the beam arms 2 and 3 when the beam is to be removed from thewarper and when an empty beam is to be lowered into place upon thefriction drum i. Said means comprises a squared stud 32 adapted toreceive a crank (not shown), said stud being connected to the shaft illby means of a sprocket chain drive 33, as described in said Patent No.1,366,447.

In operation, the friction drum I is rotated to revolve the beam B inthe direction indicated by the arrows in Figs. 1 and 3 to wind the warpthreads upon the beam. The spring 56 presses the yarn mass on the beamwith the desired pressure against the drum I. As the yarn massincreasesin diameter, the arms 2 and 3 are forced upwardly against the tension ofthe spring l6, thus lifting the screw rods 5 and causing the levers iito turn, the rear ends of said levers moving downwardly against thetension of the spring it. Such turning movement of the levers Ii causesthe forward end of the stop arm 28 to move downwardly. When said stoparm has swung downwardly so far as to be free of the trunnions of theroller 2!, said roller becomes effective to grip the disk 23 so that thepitman 2G is enabled to impart one or more movements to the disk 20 andthe shaft it]. The screw rods 5 are thereby turned through a partialrevolution in the direction to lower said rods. Such movement of thescrew rods enables the spring IE to raise the rear arms of the levers 5iand to lift the stop arm 28, thus causing suspension of operation of theroller ratchet 2d, 2!. The mechanism thus operates intermittently toproduce a succession of slight adjustments of the connection between thebeam arms 2 and 3 and the pressure-applying means as the yarn massincreases in diameter.

- It will be seen that as the beam fills and the beam arms 2 and 3 rise,the rearward extension I! descends, thus reducing the tension of thespring 16. The increase in the weight of the yarn mass is thuscompensated by reduction in the tension of the spring It so that thepressure to which the yarn mass is subjected throughout the operation offilling the beam is approximately constant.

Although the present embodiment of the invention has been described inconsiderable detail, it will be understood that the invention is notlimited to such details except to the extent indicated in the appendedclaims.

I claim as my invention:

1. A winder having, in combination, a friction driving drum, means forsupporting a yarn container with its yarn mass in peripheral contactwith the driving drum, and means for pressring the yarn mass against thedrum, said pressing means including yarn-controlled means for andyarn-controlled means for automatically adjusting the anchorage toreduce the tension of the spring as the yarn mass grows. 3. A warperhaving, in combination, a supporting framework, a friction driving drumrotatably mounted in the framework, two arms pivoted in the frameworkfor supporting a warp'beam with its yarn mass in peripheral contact withthe drum, means connected to said arms for pressing said yarn massagainst the drum, said means including a spring, a rearward extension onone of said arms to which said spring is anchored, and yarn-controlledmeans for adjusting the connection between said arms andthe pressingmeans as the beam fills andsaid arms,

rise, the lowering of said rearward extension as the arms rise causingreduction in the tension of the spring to compensate'for increase in'theweight of the yarn mass.

4. A warper having, in combination, a supporting framework, a frictiondriving drum rotatably mounted in the framework, .twoarms pivoted in theframework for supporting a warp beam with its yarn mass in peripheralcontact with the drum, means connected to said armsifor pressing saidyarn mass against the drum,said

means including a spring, an anchorage .forithe spring, andyarn-controlled means'for adjusting the connection between said arms andthe pressing means as the beam fills and for adjustingthe anchorage toreduce the tension of th'e'spring' to compensate for increase in theweight of theyarn mass.

BURT A. PETERSON.

